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Ingredients
2/3 cup matzo cake meal
1/3 cup potato starch
1/4 teaspoon salt
9 large eggs, separated
1 cup granulated sugar
Juice and zest of 1/2 orange
Juice and zest of 1/2 lemon
Passover Powdered Sugar
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Directions
- Heat oven to 325 degrees with rack in center. Whisk together matzo cake meal, potato starch, and salt; set aside. In the bowl of an electric mixer fitted with the whisk attachment, beat yolks and 3/4 cup granulated sugar until thick and pale yellow. Gradually add dry ingredients, alternating with juice and zests.
- In the clean bowl of an electric mixer fitter with the whisk attachment, beat egg whites until foamy. With machine running, gradually add remaining 1/4 cup granulated sugar and the salt. Continue beating until soft peaks form. Remove from mixer. Gently but thoroughly, fold egg whites into yolk mixture in two additions.
- Pour into a nonstick 10-inch tube pan. Bake until golden, about 1 hour. Remove from oven, and invert onto a narrow necked bottle. Let stand until cool, about 1 hour, before removing pan. Will keep covered at room temperature for up to 3 days. Just before serving, dust with powdered sugar.